cad中一些工具功能所对应的lisp命令，编程是可利用-cad tool features some of the command corresponding to lisp, programming is available

图形编程: 提供一个图形工具界面，让用户能够画出直线，椭圆，多边形等几何元素，结果可以保存并可读出。 -Graphics Programming: Provides a graphical interface tool, allowing users to draw lines, ovals, polygons and other geometric elements, the results can be saved and can be read out.

图形编程 提供一个图形工具界面，让用户能够画出直线，椭圆，多边形等几何元素，结果可以保存并可读出。 -Graphical programming provides a graphical tool interface, allowing users to draw lines, ellipses, polygons and other geometric elements, the results can be saved and can be read out.

windows编程常用函数查询工具，里面包含各种程序用到的函数的解释，举例等-Windows programming commonly used function query tool, which contains a variety of procedures used in the interpretation of the function, for example, etc.